/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.dialect.phoenix.parser;

import studio.raptor.sqlparser.ast.SQLExpr;
import studio.raptor.sqlparser.ast.SQLName;
import studio.raptor.sqlparser.ast.statement.SQLInsertInto;
import studio.raptor.sqlparser.parser.Lexer;
import studio.raptor.sqlparser.parser.SQLStatementParser;
import studio.raptor.sqlparser.parser.Token;

/**
 * Created by wenshao on 16/9/13.
 */
public class PhoenixStatementParser extends SQLStatementParser {

  public PhoenixStatementParser(String sql) {
    super(new PhoenixExprParser(sql));
  }

  public PhoenixStatementParser(Lexer lexer) {
    super(new PhoenixExprParser(lexer));
  }

  @Override
  protected void parseInsertColumns(SQLInsertInto insert) {
    if (lexer.token() == Token.RPAREN) {
      return;
    }

    for (; ; ) {
      SQLName expr = this.exprParser.name();
      expr.setParent(insert);
      insert.getColumns().add(expr);

      if (lexer.token() == Token.IDENTIFIER) {
        String text = lexer.stringVal();
        if (text.equalsIgnoreCase("TINYINT")
            || text.equalsIgnoreCase("BIGINT")
            || text.equalsIgnoreCase("INTEGER")
            || text.equalsIgnoreCase("DOUBLE")
            || text.equalsIgnoreCase("DATE")
            || text.equalsIgnoreCase("VARCHAR")) {
          expr.getAttributes().put("dataType", text);
          lexer.nextToken();
        } else if (text.equalsIgnoreCase("CHAR")) {
          String dataType = text;
          lexer.nextToken();
          accept(Token.LPAREN);
          SQLExpr char_len = this.exprParser.primary();
          accept(Token.RPAREN);
          dataType += ("(" + char_len.toString() + ")");
          expr.getAttributes().put("dataType", dataType);
        }
      }

      if (lexer.token() == Token.COMMA) {
        lexer.nextToken();
        continue;
      }

      break;
    }
  }
}
